[英]How to get the values of rank inside the foreach loop?
我正在嘗試按升序排列每所學校的排名。 例如,我只想在foreach循環外打印schoolToRank [0]的等級。 這是我按成本,人口和頂尖水平在所有學校中排名的代碼:
$rankedCost = setter_asc($test);
$rankedPopulation = setter_desc(setter_desc($user_selected_population));
$rankedTopN = setter_desc(setter_desc($user_selected_top));
$echo= '';
foreach($rankedCost as $school_toRank => $data){
echo '(school = '.$school_toRank . ' is rank = ' . $data['rank']. ')';
}
echo "<br>";
foreach($rankedPopulation as $school_toRank => $data){
echo '(school = '.$school_toRank . ' is rank = ' . $data['rank']. ')';
}
echo "<br>";
foreach($rankedTopN as $school_toRank => $data){
echo '(school = '.$school_toRank . ' is rank = ' . $data['rank']. ')';
}
例如,在學校2中,等級是1-如何單獨訪問它以僅顯示具有該等級的學校(foreach循環之外)?
您可以使用asort
方法,通過等級排序
只需在數組上使用索引:
$rankedCost[2]['rank']
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